Filter cartridge



FIG. 1 is a front view of a filter cartridge, showing the new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a front top right perspective view thereof;

FIG. 8 is a front top left perspective view thereof;

FIG. 9 is a rear top left perspective view thereof;

FIG. 10 is a rear top right perspective view thereof;

FIG. 11 is a front bottom right perspective view thereof;

FIG. 12 is a front bottom left perspective view thereof;

FIG. 13 is a rear bottom left perspective view thereof; and,

FIG. 14 is a rear bottom right perspective view thereof.

Any broken lines in the figures show portions of the filter cartridge that form no part of the claimed design. 

CLAIM The ornamental design for a filter cartridge, as shown and described. 